First quarter of 2016 saw a dramatic increase in the number of unsolicited emails containing malicious attachments. The number of email antivirus detections reached 22,890,956, which is four times more than the average for the same period last year. The content of the emails may encourage the user not only to download a malicious file but also launch it. Its possible that malicious attachments are enjoying a new wave of popularity because in the last couple of years browsers have considered adding protection against infected and phishing websites.”]
Source: https://securelist.com/spam-and-phishing-in-q1-2016/74682/